Wettability effect on the corrosion kinetics of iron anodes in sulfuric acid solutions

The interdependence of electrode wetting and electrode corrosion rate was studied for the Fe anode in aqueous sulfuric acid solutions. The effects of acid solution concentration and surface-active agents on the corrosion rate and passive--active transition current oscillation amplitude were measured. The results show that both are dependent on the electrode wetting. The electrode wettability is shown to change as a function of time which results in convective liquid displacement around the electrode and on variable corrosion rates. 8 ref.--AA